Hey Everyone,

I'm having a problem all of a sudden with racking. When I press go to zero, when the gantry gets close to the center of the table the Y & A axis motors seem to come out of sync and rack the gantry. When I sight across the T-slot table the gantry is misaligned about 1/2" with the slots. I use Mach 3 & the motors are tuned exactly the same.

Is it possible something is out of square? Does anyone have any advice or suggestions?

Thanks in advance, much appreciated!

Simon

The machine is a Velox VR-5050 with a travel of 53" x 53"

  • Home Switches on All Axis - Home Zeroed Saves all Part(Fixture) Zeros
  • Nema-34 960oz/in Stepper Motors on X, and Dual Drive Y-Axis (A-slaved)
  • Nema-23 400oz/in Stepper Motor on Z-Axis